Four years after the earthquake in Haiti, it is still hard to trace where the money has gone.

Data released by the USAid last year shows it spent more than $270m on projects in Haiti in 2013, with US-based companies receiving almost half of this and American non-profits a further 37%.

But the data that has been published is incomplete. More than 300 records (accounting for almost 6% of total spending in 2013) lack detail on where organisations are located, for example.

The largest USAid spending areas in 2013 were health (25%) and humanitarian assistance (22%); both were dominated by US-based organisations, which received 98% and 82% of funding respectively. Agriculture was the third-largest spending area (11%).

Read more about why we should still care about Haiti.